Classifications

• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
  • G03B21/00—Projectors or projection-type viewers; Accessories therefor
  • G03B21/54—Accessories
  • G03B21/56—Projection screens
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
  • E04H3/00—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons
  • E04H3/10—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons for meetings, entertainments, or sports
  • E04H3/22—Theatres; Concert halls; Studios for broadcasting, cinematography, television or similar purposes
• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
  • G03B35/00—Stereoscopic photography
  • G03B35/18—Stereoscopic photography by simultaneous viewing
  • G03B35/20—Stereoscopic photography by simultaneous viewing using two or more projectors
• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
  • G03B37/00—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe
  • G03B37/04—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe with cameras or projectors providing touching or overlapping fields of view
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N9/00—Details of colour television systems
  • H04N9/12—Picture reproducers
  • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
  • H04N9/3141—Constructional details thereof
  • H04N9/3147—Multi-projection systems
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N9/00—Details of colour television systems
  • H04N9/12—Picture reproducers
  • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
  • H04N9/3179—Video signal processing therefor
  • H04N9/3182—Colour adjustment, e.g. white balance, shading or gamut
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N9/00—Details of colour television systems
  • H04N9/12—Picture reproducers
  • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
  • H04N9/3179—Video signal processing therefor
  • H04N9/3185—Geometric adjustment, e.g. keystone or convergence
• • G—PHYSICS
  • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
  • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
  • G09F19/00—Advertising or display means not otherwise provided for
  • G09F19/12—Advertising or display means not otherwise provided for using special optical effects
  • G09F19/18—Advertising or display means not otherwise provided for using special optical effects involving the use of optical projection means, e.g. projection of images on clouds

Definitions

• 3D image technologies for providing the audience with 3D images have recently been developed.
• 3D image technologies use the principle of allowing an audience to feel the 3D effect even from a flat image when different images are presented to the left and right eyes of the audience and combined in the brain.
• two cameras equipped with different polarizing filters are used during filming, and the audience wears glasses with polarizing filters such that different images are presented to the left and right eyes during watching.
• the plurality of projection surfaces are necessarily required to implement the “the multi-projection system”. Therefore, it is necessary to install an additional projection surface so as to construct the “multi-projection system” in a conventional theater having only a single screen (i.e., a traditional screen).
• a “structural surface e.g., a wall surface, floor surface, ceiling surface, etc.
• a normal projection surface cannot be implemented due to multiple projection equipments installed on the structural surface (various projection equipments are installed on the structural surface of the theater as shown in FIG. 1, and thus when the structural surface of the theater itself is used as the projection surface, the reproduced image is seriously distorted by the appearance of the projection equipments).
• the present invention has been made in an effort to solve the above-mentioned problems and to provide additional technical elements that cannot be easily invented by those skilled in the art.
• An object of the present invention is to implement a multi-projection environment without installing an additional screen (i.e., a traditional screen).
• another object of the present invention is to provide a smooth projection surface even when various projection equipments are installed on a structural surface of a theater.
• the present invention can solve additional problems that may occur from the description of the specification in addition to the above-mentioned problems.
• the projection equipment may be installed on a wall surface, a floor surface, or a ceiling surface of the theater, and the cover may prevent the wall surface, the floor surface, or the ceiling surface and the projection equipment from being exposed.
• images corrected in different ways may be projected on the projection surface and the surface of the cover.
• the correction may be based on a difference in surface morphology, a difference in surface chromaticity, a difference in surface brightness, or a difference in surface reflectance.
• the cover may comprise a rear screen film for the rear projection.
• the cover may prevent all or part of the projection equipment from being exposed.
• the cover may comprise an opening for exposing part of the projection equipment.
• the projection equipment may be a projection device, the projection device projecting an image on the projection surface through the opening.
• the opening may be opened and closed by electrical control.
• the projection equipment may be an additional effect device, the additional effect device being exposed to the auditorium through the opening at a predetermined time.
• the colors in gradation may be formed based on a color of the cover and a color of an adjacent projection surface.
• images corrected in different ways may be are projected on the surface of the cover and the projection surface.
• the present invention can further provide a projection surface on which an image is smoothly projected without having to additionally install a “traditional white or silver screen” in a theater.
• the present invention can further provide a projection surface by additionally installing a simple “cover” on a structural surface of a conventional theater with its own structure and using the surface of the installed “cover”. Therefore, with the additional installation of the simple “cover”, it is possible to increase the number of projection surfaces without having to additionally install any traditional screen.
• the present invention can configure the additionally installed “cover” to have a domed shape. Therefore, when implementing a “multi-projection environment” using the “cover”, the present invention can surround the auditorium using a plurality of projection surfaces and also using the domed shape of the “cover” itself in view of a single projection surface, thus further improving the immersion of the audience in the image.
• the present invention can further provide an optical coating layer formed on the surface of the additionally installed “cover”. Therefore, it is possible to improve the quality of the image reproduced on the surface of the “cover” and reduce the heterogeneity of images reproduced on different types of projection surfaces.
• the present invention can correct an image projected on the “surface of the cover” and an image produced on “different types of projection surfaces”. Specifically, the present invention can correct the images in different ways depending on differences in properties (e.g., color, chromaticity, shape, brightness, reflectance, etc.) between the “surface of the cover” and “different types of projection surfaces”, thus reducing the heterogeneity between the images.
• properties e.g., color, chromaticity, shape, brightness, reflectance, etc.
• the present invention can form colors in gradation on an outer edge of the “cover”. Therefore, it is possible to reduce the heterogeneity at the boundary when the color of the “cover” is quite different from that of an adjacent projection surface.
• the present invention can, of course, include any additional effects that may be derived from the description of the specification in addition to the above-mentioned effects.
• FIG. 1 is a diagram showing an example of a conventional structural surface (e.g., a ceiling surface, wall surface, floor surface, etc.) on which projection equipments are installed.
• a conventional structural surface e.g., a ceiling surface, wall surface, floor surface, etc.
• FIG. 2 is a diagram showing a theater structure in accordance with an embodiment of the present invention.
• FIG. 3 is a diagram showing a theater structure in the form of a dome in accordance with an embodiment of the present invention.
• FIG. 4 is a diagram showing an example of an optical coating layer formed in a theater structure in accordance with an embodiment of the present invention.
• FIG. 7 is a diagram showing an example of a multi-projection environment implemented using a theater structure in accordance with an embodiment of the present invention.
• FIG. 8 is a diagram showing an example of a theater structure with colors in gradation in accordance with an embodiment of the present invention.
• FIG. 10 is a diagram showing an example of a theater structure in accordance with another embodiment of the present invention.
• FIG. 11 is a diagram showing an example of a theater structure in accordance with still another embodiment of the present invention.
• each component may be implemented only in hardware, or only in software, or in various combinations of hardware and software performing the same functions.
• traditional screen refers to a white screen, a light gray screen, a silver screen, etc. which are mainly installed in conventional theaters.
• the theater structure in accordance with an embodiment of the present invention may comprise a projection equipment 200 installed in a theater and a cover 100 for preventing the projection equipment 200 from being exposed to an auditorium, and the surface of the cover 100 may be used as a projection surface on which an image is projected.
• the projection equipment 200 refers to various equipments installed in the theater for the projection itself or to assist the projection.
• the projection equipment 200 may include various equipments formed in the theater such as a projection device, an acoustic device (e.g., a speaker, etc), a light-emitting device, an air blower, a fragrance diffuser, a fog machine, a heater, a cooler, a laser device, a bubble generator, an LED, a water jet, a vibrator, a frame structure for installing a device, an internal frame structure of a theater, etc. as well as various other equipment that can be installed on the structural surface of the theater.
• a projection device e.g., a speaker, etc
• a light-emitting device e.g., a light-emitting device
• an air blower e.g., a fragrance diffuser
• a fog machine e.g., a fog machine
• a heater e.g., a heater, a cooler, a laser device, a bubble generator, an LED, a water jet, a vibrator
• these projection equipments 200 are installed on the structural surfaces (e.g., a left side, right side, rear side, floor side, ceiling side, etc.) other than the front side on which the “traditional screen” is installed, and thus it is difficult to additionally installed the “traditional screen” on any structural surface.
• the corresponding structural surface itself is to be used as a projection surface, it is impossible to implement a normal projection surface due to image distortion caused by the projection equipments installed on the surface (e.g., by the physical appearance of the projection equipments).
• the present invention can additionally form a smooth projection surface (providing an image with less distortion) by additionally installing a cover 100, which can prevent the projection equipment from being exposed to the outside, and using the “surface of the cover 100” itself as a projection surface, without having to change the structure of the conventional theater or change the installation position of the projection equipment.
• the cover 100 is configured to prevent the projection equipment from being exposed to the auditorium as briefly described above. Specifically, the cover 100 is provided between the projection equipment, installed on the structural surface (e.g., a wall surface, ceiling surface, floor surface, etc.), and the auditorium to prevent the projection equipment from being exposed to the auditorium.
• the structural surface e.g., a wall surface, ceiling surface, floor surface, etc.
• the cover 100 comprises a surface without irregularities so as to serve as a smooth projection surface (providing an image with less distortion) based on the surface without irregularities. Therefore, the cover 100 can reproduce an image, projected by a cover projection device 150, smoothly using the surface without irregularities in a state where the projection device 200 and the structural surface are prevented from being exposed, thus providing the audience with an additional image.
• the direction that the image is to be projected on the surface of the cover 100 may be configured in various ways. For example, the image may be projected on the external surface of the cover 100 from the outside of the cover 100 (as shown in the embodiment of FIG. 2) or the image may be projected on the internal surface of the cover 100 from the inside where the projection equipment 200 is accommodated (not shown).
• the cover 100 may be configured in the form of a cover having an internal space and may be configured to be attached to and detached from the structural surface of the theater. Therefore, the cover 100 can accommodate the projection equipment using its internal space and can additionally accommodate an equipment, which is required to be installed, by the attachment and detachment of the cover 100.
• the cover 100 may comprise various types of surfaces. Specifically, the cover 100 may comprise various types of surfaces such as a domed shape, a polygonal shape, a circular shape, etc.
• the cover 100 may be configured in various forms depending on the characteristics of content to be projected or the characteristics of the theater and then applied to the theater.
• the cover 100 may comprise a surface on which an optical coating layer is formed, which will be described in detail later. Therefore, it is possible to implement a projection surface of high quality through the surface on which the optical coating layer is formed and to reduce the heterogeneity that may occur between other projection surfaces.
• the cover 100 may have colors in gradation, which will be described in detail later. Specifically, colors in gradation may be formed on an outer edge of the cover 100 so as to reduce the heterogeneity at the boundary when the color of the cover 100 is quite different from that of an adjacent projection surface.
• a synchronized image may be projected on the surface of the cover 100, which will be described in detail later.
• an image synchronized with an image projected on a projection surface installed in the theater may be projected on the surface of the cover 100. Therefore, the surface of the cover 100 may implement a multi-projection environment in conjunction with the projection surface installed in the theater, thus providing the audience with a synchronized and unified image.
• a corrected image may be projected on the surface of the cover 100, which will be described in detail later.
• the correction may be based on the surface, color, chromaticity, brightness, reflectance, material quality, etc.
• the correction may be based on differences in properties between the “surface of the cover 100” and the projection surface installed in the theater. Specifically, the correction may be performed so as to offset the differences in properties between the “surface of the cover 100” and the projection surface (e.g., a difference in color, a difference in chromaticity, a difference in brightness, a difference in reflectance, a difference in shape, a difference in material quality, etc.).
• the theater structure in accordance with an embodiment of the present invention may comprise a cover 100 configured in the form of a dome.
• the theater structure in accordance with an embodiment of the present invention may comprise a cover 100 formed on the structural surface such as a ceiling surface, a floor surface, a wall surface, etc.
• the cover 100 may preferably comprise a dome-shaped surface as shown in FIG. 3.
• the theater structure in accordance with an embodiment of the present invention can surround the auditorium through the domed shape itself and project an image on the dome-shaped surface (i.e., the surface of the cover 100), thus further maximizing the immersion that the audience feel (because the audience can feel more as if they are surrounded by the image).
• the audience when the multi-projection system is implemented using the surface of the dome-shaped cover 100, the audience can be surrounded primarily by a plurality of projection surfaces and surrounded secondarily by the domed shape in a specific direction that the cover 100 is present, and thus the three-dimensional effect and immersion that the audience feels can be further maximized.
• the theater structure in accordance with an embodiment of the present invention may comprise an optical coating layer 110 formed on the surface of the cover 100.
• the theater structure in accordance with an embodiment of the present invention may comprise the optical coating layer 110 formed on the surface of the cover 100 so as to implement an image of high quality on the surface of the cover 100. Therefore, the theater structure in accordance with an embodiment of the present invention may provide an image quality at a level similar to that of other projection surfaces installed in the theater through the optical coating layer 110, thus reducing the heterogeneity that may occur between the images projected on the “other projection surfaces”.
• the optical coating layer 110 is configured to improve the optical properties of the surface of the cover 100.
• the optical coating layer 110 may change the surface of the cover 100 to a smooth shape (without irregularities) or change the surface quality of the cover 100 to have excellent optical properties (e.g., polarization properties, reflectance properties, scattering properties, etc.).
• the optical coating layer 110 may be formed by various methods, preferably by applying an optical paint. Specifically, the optical coating layer 110 may be formed by applying an optical paint capable of improving the optical properties on the surface of the cover 100.
• the optical paint may comprise various types or various states of materials and may preferably comprise optical particles for improving the optical properties and a fluid that serves as a carrier.
• the optical particles refer to particles contained in the optical coating layer to improve the optical properties.
• the optical particles may comprise various fine particles for improving the optical properties such as, for example, metal particles (e.g., aluminum) having excellent reflection properties, dielectric particles (e.g., silicon oxide particles, magnesium fluoride particles, etc.) having excellent optical properties, etc.
• the optical particles may be formed by cutting or pulverizing an optical substrate including a metal layer (e.g., an aluminum layer, etc.) or a dielectric layer (e.g., a silicon oxide layer, etc.). That is, the optical particles may be formed by deforming the optical substrate including the metal layer or dielectric layer into small particles by a physical method.
• the fluid serves as a carrier that allows the optical particles to be coated.
• the fluid may comprise various fluid materials and may preferably comprise PVC resin, enamel, polyurethane, acrylic resin, lacquer, etc.
• the cover 100 may comprise an opening 120 for partially exposing the projection device accommodated in the cover 100.
• the operation of the projection device 200 accommodated in the cover 100 may be transmitted to the outside through the opening 120.
• a projection device 220 or a light-emitting device 230 is accommodated in the cover 100 as shown in FIG. 5, an image projected by the projection device 220 or light projected by the light-emitting device 230 may be transmitted to the outside through the opening 120.
• the opening 120 is configured to have a minimized size. Specifically, it is preferable that the opening 120 has a minimized size that exposes only a minimum of the projection device 200 required to transmit the operation of the projection device 200 to the outside.
• the image may be distorted by the opening 120 (e.g., by the physical appearance of the opening 120), and thus it is necessary to minimize the size of the opening 120. Therefore, it is preferable that the opening 120 is configured to have a minimized size so as to expose only a lamp of the projection device 220 or a lamp of the light-emitting device 230.
• the present invention may allow a corrected image to be projected on the surface of the cover 100 including the opening 120.
• the present invention may analyze information on the distortion caused by the opening 120 and then correct the image so as to offset the distortion caused by the opening 120.
• the present invention may correct the image by analyzing information on the distortion of the image caused by the opening 120 or by analyzing the information on the distortion of the surface geometry caused by the opening 120.
• the present invention may also correct the image by analyzing information on a difference in brightness, a difference in reflectance, etc. caused by the opening 120.
• This correction operation may be performed by various devices including a management device which will be descried later.
• the theater structure in accordance with an embodiment of the present invention may comprise an openable and closable opening 120.
• the theater structure in accordance with an embodiment of the present invention may comprise an opening 120 that may be opened when the operation of the projection device 200 accommodated in the cover 100 is required to be transmitted to the outside and may be closed when the operation of the projection device 200 is not required to be transmitted to the outside. Therefore, with the openable and closable opening 120, it is possible to minimize the time required by the projection equipment 200 to be exposed to the outside and to minimize the time required by surface of the cover 100 to provide the smoothest projection surface.
• the opening 120 may selectively expose various projection equipments 200 to the outside. Specifically, by the opening and closing operation, the opening 120 may selectively expose the projection device 220, the light-emitting device 230, an additional effect device 240, etc., which are accommodated in the cover 100, only at a specific time.
• the theater structure in accordance with an embodiment of the present invention may accommodate a movable additional effect device 240 in the cover 100.
• the theater structure may comprise the movable additional effect device 240 (which is fixed to a frame capable of performing a linear or rotational motion and can be moved by the motion of the frame, for example) as shown in FIG. 6. Therefore, in this embodiment, when the opening 120 is opened, the additional effect device 240 can be fully exposed to the auditorium by the motion, whereas, when the opening 120 is closed, the additional effect device 240 can be completely accommodated in the cover 100 by the motion.
• the additional effect device 240 is a device for implementing an additional effect other than the image and may be implemented with various projection equipments.
• the additional effect device 240 may be configured to expose a structure that matches a reproduced image to the audience (for example, to expose a planet-shaped structure to the field of view of the audience when a planet crashing scene in the space is reproduced or to expose a remnant (e.g., a structure) of an aircraft when an aircraft crashing scene is reproduced).
• the additional effect device 240 may be configured with various other devices, which can stimulate the five senses of human, such as a speaker, an air blower, a fragrance diffuser, a fog machine, a heater, a cooler, a laser device, a bubble generator, an LED, a water jet, etc.
• the screen may be formed of various materials such as a PVC screen, a white-coated PVC screen, a pearl gloss-coated PVC screen, an aluminum-coated PVC screen, a matte screen, a lenticular screen, a glass beaded screen, a silver screen, a high-gain screen, etc.
• the screen may be of various types such as an embedded electric screen, an exposed electric screen, a wall-mounted screen, a tripod screen, a road warrior screen, a high-brightness screen, a sound screen, etc.
• the screen may include a water screen, a fog screen, a holographic screen, a miracle screen (using magic glass), etc. as well as other various types of screens.
• correction may be based on differences in various properties other than the above-mentioned properties.
• the process of correcting the images, projected on the plurality of projection surfaces, based on the differences in properties of the plurality of projection surfaces is performed “so as to reduce the differences in properties of the plurality of projection surfaces” because the purpose of the correction is to offset the heterogeneity.
• the additional effect device 340 may comprise various devices such as a speaker, an air blower, a fragrance diffuser, a fog machine, a heater, a cooler, a laser device, a bubble generator, an LED, a water jet, etc. which can stimulate the five senses of human.
• the additional effect device 340 may be configured to expose a structure that matches a reproduced image to the audience (for example, to expose a planet-shaped structure to the field of view of the audience when a planet crashing scene in the space is reproduced or to expose a remnant (e.g., a structure) of an aircraft when an aircraft crashing scene is reproduced).
• the projection devices 320 for the “other projection surfaces” and the additional effect device 340 may be installed in various positions in the theater and may preferably be installed while being accommodated in the cover 100. Specifically, the projection devices 320 for the “other projection surfaces” and the additional effect device 340 may be installed in the form of the projection device 220 and the additional effect device 240, which are accommodated in the cover 100, as shown in FIGS. 5 and 6. Therefore, the projection devices for the “other projection surfaces” and the additional effect device are not exposed to the audience by this structure, thus further improving the immersion that the audience feels (that is, the equipments installed disorderly are not exposed to the audience, which reduces the distraction of the audience and improves the immersion of the audience).
• the management device 400 is a device for controlling various projection equipments including the two or more projection devices and the additional effect device which are installed in the theater.
• the management device 400 may manage the images projected on the plurality of projection surfaces and may perform the correction of the images projected on the plurality of projection surfaces based on differences in properties of the plurality of projection surfaces.
• the management device 400 may control the two or more projection device to operate in synchronization with each other or may control the additional effect device to operate in synchronization with image data. In this case, the management device 400 may perform the synchronization control based on a time code of image data.
• the management device 400 may be implemented with various electronic devices.
• the management device 400 may be implemented with a single electronic device or with several electronic devices interconnected to each other.
• the management device 400 may be implemented in a single server or in such a manner that two or more servers are interconnected.
• the management device 400 may be implemented in such a manner that a server and other electronic devices are interconnected or implemented in arithmetic units other than the server.
• the management device 400 may comprise a wired or wireless communication device and may operate in connection with external devices through a wired or wireless communication network.
• the projection equipment is configured as a projection device 200 that perform rear projection and the cover 100 serves as a rear projection surface.
• the projection device 220 may be disposed in the cover 100 while not being exposed to the audience and project an image on the surface of the cover 100 by the rear projection.
• the cover 100 included in the theater structure in accordance with another embodiment of the present invention comprises a rear screen film 160 for the rear projection as shown in FIG. 10 and it is also preferable that the cover 100 is formed of a transparent material.
• the rear screen film 160 itself may be used as the cover, without forming a separate cover.
• the theater structure in accordance with still another embodiment of the present invention may be configured in a manner that the cover 100 itself can move as well as the above-described movable opening 120.
• the cover 100 may be configured to move by means of a joint connector (and an actuator), for example.

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• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Multimedia (AREA)
• General Physics & Mathematics (AREA)
• Signal Processing (AREA)
• Architecture (AREA)
• Geometry (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Projection Apparatus (AREA)
• Transforming Electric Information Into Light Information (AREA)
• Overhead Projectors And Projection Screens (AREA)

Applications Claiming Priority (2)

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• 2013
  • 2013-12-04 EP EP13888398.8A patent/EP3014355A4/de not_active Withdrawn
  • 2013-12-04 CN CN201380076816.6A patent/CN105247415B/zh not_active Expired - Fee Related
  • 2013-12-04 JP JP2016523611A patent/JP2016531312A/ja active Pending
  • 2013-12-04 WO PCT/KR2013/011178 patent/WO2014208837A1/en not_active Ceased
  • 2013-12-04 MY MYPI2015703975A patent/MY176295A/en unknown

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